I don't have any Nikon cameras, I have the canon. If you need the good frames rate camera, 1) EOS-1D X (up to 12 fps) http://www.usa.canon.com/cusa/consumer/products/cameras/slr_cameras/eos_1d_x#Features,
2) Nikon D4 (up to 11 fps) http://imaging.nikon.com/lineup/dslr/d4/
But all the high end cameras don't have the pop flash which is limited.
Also if you need other like olympus E-M5 (they said up to 11-12 fps). http://fourthirds-user.com/2012/03/olympus_omd_em5_high_speed_burst_mode_shooting_timings.php